Interior of Solar and Extrasolar Giant Planets

Details Interior of Solar and Extrasolar Giant Planets Interior of Solar and Extrasolar Giant Planets

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1195..905r&link_type=abstract

SHOCK COMPRESSION OF CONDENSED MATTER 2009: Proceedings of the American Physical Society Topical Group on Shock Compression of C

Physics

Condensed Matter

Geology, Ab Initio Calculations, Electrical Conductivity, Physical Properties Of Rocks And Minerals, Ab Initio Calculations, Geoelectricity, Electromagnetic Induction, And Telluric Currents

Scientific paper

We present new results for the interior of solar as well as extrasolar giant planets based on ab initio molecular dynamics simulations for the most abundant planetary materials hydrogen, helium, and water. The equation of state, the electrical conductivity and reflectivity can be calculated up to high pressures; very good agreement with shock-wave experimental results is found. The nonmetal-to-metal transition in hydrogen and the subsequent demixing of hydrogen from helium is of great importance for the interior of Jovian planets. The superionic phase predicted for water at high pressures is relevant for Neptune-like giant planets. Advanced planetary models can be constructed based on the new ab initio data.

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